Rcpp11 is an R package and a C++11 library that dramatically facilitates integration of R and C++11.

Rcpp11 will enforce C++11 at the configure stage. Therefore it will not be published to CRAN until this distribution repository decides to finally allow C++11.

Rcpp11 will only be available on github during the initial cleaning stage involving:

• removing code from Rcpp that should not be there but that is kept in Rcpp because of too strong requirements, because it once was there, because someone somewhere might use it... For example the RCPP_FUNCTION_.. macros that are planned to be removed in july 2014 () in Rcpp. These macros will not be in Rcpp11.
• the Date etc ... classes in Rcpp are using a design that is different from all other classes of Rcpp, the proxy design. These classes will not be in Rcpp11. Replacements might be included at a later stage if it is needed. Replacements should follow the design principles of classes of the Rcpp API, e.g. RObject, ...
• more emphasis on C++11 features: e.g. initialisation lists and variadic templates will be used.
• Rcpp11 will be able to assume features of C++11, for example move semantics, and therefore make active use of them: packages depending on Rcpp11 won't have to condition compile C++11 availability.
• Rcpp11 will try to use classes provided by C++11 standard library, e.g. classes for regular expressions.

Because Rcpp11 cannot be on CRAN because CRAN insists on the C++98 standard. I will have to find an alternative distribution repository.

My goal is to setup this repository so that third party packages depending on Rcpp11 can be published.

To install Rcpp11 from github, you first need to get a compiler that supports C++11. This is trivial on recent version of OSX. You can just use clang. I have this on my ~/.R/Makevars file:

CC=clang
CXX=clang++
PKG_CXXFLAGS= -stdlib=libc++ -std=c++11

Then, you can install it using devtools::install_github:

devtools::install_github( "romainfrancois/Rcpp11" )
require( Rcpp11 )
evalCpp( "2LL" )
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